The Cimalp Blog

You're all set for the UTMB race and the only remaining uncertainty is the weather in Chamonix in August. Even if it's difficult to make precise forecasts, it is...

Waterproof, windbreaker or warm second layer: the guide to choosing the best trail jacket for your activity and the weather, with Cimalp’s selection by use.

Gear up for trail running in the rain: what changes on the trail, head-to-toe clothing, and how to keep access to your pack when it rains.

If you have the UTMB® 2025 race on your radar, getting to know the specifics of this year's edition is a must. From the big names taking part,...

As part of the UTMB, an ultra-trail expo (the Ultra-Trail® Village) is organised, bringing together a large number of exhibitors and welcoming nearly 50,000 visitors who are passionate about off-road...

As part of the UTMB®, the regulations set out a mandatory kit list, common to the UTMB®, CCC® and TDS®. Here are the items, which you can check at any time on the official website...

To make the most of the UTMB® 2025 edition, the organiser provides the general public with a live race tracker, so you never miss any of the key moments of the race and...

For each UTMB race, the refreshment stations are key points on the course and must be known in order to best manage effort and nutrition. A network of refreshment...

It is important to be well-informed about the rules regarding aid stations and support crew assistance on the UTMB®, and on this last point, many newcomers to these distances wonder whether having a support crew is...

Managing sleep during an endurance race is always a delicate matter. It will depend on your experience with this type of event and your training programme, as well as...

To fully understand the UTMB® courses, it is essential to know the times required to finish the event in order to be ranked among the finishers. Time limit for each...

As you explore the legendary race that is the UTMB®, it is time to look at the courses available to competitors, understand their differences, and the key points of...

If your goal is to run the UTMB, knowing the race inside out is essential. That means understanding the different possible routes, the history of the event, and the...

To prepare your trip to Chamonix for the UTMB, it will be important to know the aid station and support conditions during the race, but also to anticipate the weather conditions in...

So, the decision is made — a seasoned ultra runner, you've set your sights on the UTMB®! A real challenge for athletes passionate about trail running in one of the most stunning natural settings in the...

If you want to take on the UTMB®, your preparation will be a key phase. It should of course include a solid training plan, thorough mental preparation, a nutritional regime...